Some of the cheesy things he does such as FIIIIIIIIIIGHT and people singing the show out are lighthearted stabs at all the "shit" on TV. He's mocking TV programmes that are on by putting shit on his own show. It's clever when you think about it.

exactly. people glance at the show and see cheesey bollox but thats what he's saying. the dude last night.... he was like a drunken tramp of emmerdale or summat and he went HHHHEEEELLLLOOOO then came on set n did it. i was cryin

i never used to like harry hill but tv burp is fuckin mint. he made youve been framed beter aswel. not a big fan of the FIIIIGHT bit on tv burp but sum of the one liners are joke. funny wen he rinses bear grylls and ray mears, also the soaps